{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1131-2JC40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1131-2JC40","canonicalUrl":"https://aoctrl.com/siemens/3RH1131-2JC40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1131-2JC40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS coupling relay, 3RH1131-2JC40, S00 size, 3 NO contacts, 10 A AC-12, screw and snap-on mounting, IP20 front, surge suppressor with diode.","salesMarkdown":"The Siemens 3RH1131-2JC40 is a SIRIUS coupling relay rated for switching auxiliary circuits — think interposing relays in control panels, signal isolation between PLC outputs and motor contactor coils, or pilot-duty loads. Mounting is screw or snap-on (the evidence says both), and the enclosure is IP20 on the front — fine for a clean panel, not for washdown. The headline rating is 10 A at AC-12 duty, which covers resistive and solid-state loads at 24 V. For higher voltages the rating drops: 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V. The coil power is 2.3 W DC for both closing and holding, so the coil draw is modest and consistent. The surge suppressor is built in with a diode, which means you don't need an external flyback diode for DC coil suppression — saves a component and a wiring step. Shock resistance is 10g for 5 ms and 5g for 10 ms — adequate for most industrial panels, not for extreme mobile or high-vibration applications. That takes the guesswork out of panel layout — you can orient it to fit wire routing. ## Connections and wiring The solid connection accepts 2 x (0.25... 2.5 mm²) — that is two conductors per terminal, solid or stranded, in the range from 0.25 to 2.5 mm². No special ferrules required for stranded if you strip cleanly. The contact configuration is 3 NO instantaneous contacts (no delay, no make-before-break, no lagging). No auxiliary switch. Depth is 73 mm, height 60 mm — standard S00 dimensions that match the contactor line.","metaTitle":"Siemens 3RH1131-2JC40 SIRIUS Coupling Relay, 10 A AC-12, S00","metaDescription":"Siemens SIRIUS coupling relay 3RH1131-2JC40, S00 size, screw/snap-on mount, 3 NO contacts, 10 A AC-12, surge suppressor with diode, IP20 front, current lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Maximum":"2 000 m","At The Side":"0 mm","Rated Value":"30 V","On The Front":"IP20","Initial Value":"0.7","Mounting type":"screw and snap-on mounting","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","Auxiliary switch":"No","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","Full-scale value":"1.25","Shock resistance":"10g / 5 ms and 5g / 10 ms","Delayed Switching":"0","Lagging Switching":"0","Mounting position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size of contactor":"S00","Product brand name":"SIRIUS","Degree of pollution":"3","Product designation":"Coupling relay for switching auxiliary circuits","at 24 V rated value":"10 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.27 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"2 A","at 690 V rated value":"1 A","Instantaneous Contact":"3","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Design of the surge suppressor":"with diode","Closing power of magnet coil at DC":"2.3 W","Holding power of magnet coil at DC":"2.3 W","Operating current at AC-12 maximum":"10 A","Surge voltage resistance rated value":"6 kV","Reference code acc. to DIN EN 81346-2":"K","with low demand rate acc. to SN 31920":"40 %","with high demand rate acc. to SN 31920":"75 %","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"Cage Clamp terminals","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","Number of NC contacts for auxiliary contacts":"1","Number of NO contacts for auxiliary contacts":"3","with degree of pollution 3 at AC rated value":"690 V","Type of voltage of the control supply voltage":"DC","Identification number and letter for switching elements":"31 E","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=128615&mlfb=3RH1131-2JC40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1131-2JC40/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this coupling relay?","answer":"The maximum operating current is 10 A at AC-12 (24 V). At 230 V it is 6 A, at 400 V it is 3 A, at 500 V it is 2 A, at 690 V it is 1 A. Coil power is 2.3 W DC. It has 3 NO instantaneous contacts and a built-in surge suppressor with diode."},{"question":"What wire size does the terminal accept?","answer":"Solid connection: 2 x (0.25... 2.5 mm²). That is two conductors per terminal in that range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1131-2JC40","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RH1131-2JC40 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}